Tiltable truck body



1940- E. R. BARRETT TILTABLE TRUCK BODY Filed 001:. l, 1938 3Sheets-Sheet l [N VENTOR ,Biarreif Jan. 9, 1940 E. R. BARRETT TILTABLETRUCK BODY Filed Oct. 1, 1938 3 Sheets-Sheet 2 INVENTOR r Barre??? gilll Ill Patented Jan. 9, 1 940 PATIENT.- OFFICE TILTABLE TRUCK BODY EdwardR. Barrett; Detroit, Mich., assignor to I Gar Wood Industries, Inc.,Detroit, Mich., a

' v corporation of Michigan Application October 1,

14' Claims.

This invention relates to vehicles having bodies rockably mountedto dumpfrom the side thereof.

The main objects of this invention are to provide improved means forsecuring a rockably 57-mounted dump body tightly ,to its supportingframe so that it will not vibrate and rattle; to

porting frame work;. and to provide a simple.

rugged structure which is fool-proof in operation and which will givesatisfactory operation over a long period of use.

Fig. l is a view in side elevationof .a side dump rocking body vehicleprovided with the. improved releasable locking means;

Fig. 2 is a View in end elevation of the same as viewed looking from therear. or left end of Fig. 1;

Fig. 3 is a view in front end elevation as viewed looking in thedirection of the arrow3 of Fig. 1; 3.0.; Fig, i is an enlarged view inelevation of the locking mechanism illustrated at the rear end of thevehicle shown in Fig. l, and as viewed .looking in the directionindicated by the arrow 4 thereon;

Fig. 5 is a fragmentary sectional view taken along the line 5-5 of Fig.4, looking in the direction indicated by the arrows;

Fig. 6 is an enlarged fragmentary sectional view taken along the line li-6 of Fig. 3, looking in 40,.the direction indicated bythe arrows; I

Fig. 7 is a fragmentary sectional Vie'w'taken on the line 1-1 of Fig.6,- looking in the direction indicated by the-arrows. 1

Vehicles having side dump rocking bodies of 45: the character hereinshown and described are generally used for the hauling of refuse,garbage and the like. Several such vehicles are often coupled togetherin a train and one tractor is used to haul a train ofthem to the garbagedis- 69; posal grounds.

At the present time it sometimes happens that when the locking mechanismwhich holds the body in an upright position is released by theattendants the body, due to an uneven load lifi thereon; willimmediately rockover on its side An illustrative embodiment of thisinvention is. shown in the accompanying. drawings, in which:.

1938, Serial No. 232,703 01. 29838) without any manual urging. Also,itsometimes happens that under such conditions the bodywill rock towardthe person who released the lock and thereby dump the load onto suchperson.

Furthermore, in vehicles of. thischaracter, the 5 bodies jolt and. jumparound on their trackways with a great amount of clattering noise whentraveling over roughground. In the present invention means are. providedfor insuring that the load will notbedumped toward or onto the oper- 10ator who releases the lock of the body and during conveyance of the loadto the dumping groundsand the like the bodies are firmly clamped totheir supporting trackways soas to eliminate the usual clattering noisewhich usually accompanies trains of this type of; vehicle. Thesafety'feature involved in the present invention is of great importanceand the mechanical arrangement is such that itis impossible for theperson unlock-. ing the body to accidentally have the body rockzo; overupon him. p a

In the construction shown in the drawings, the vehicle comprises a.supporting frame Work Ill mounted onground wheels II and I2, and which.is provided with a plurality of substantially horizontally disposedtransversely extending trackways l3 which are spaced longitudinally ofthe framework It. The trackwaysl3 fitbetween the side walls of invertedU-shaped members l4 which are of arcuate shape when viewed in sideelevation, as shown .most clearly in Figs. .2 and 3 of the drawings. Thetrackways it are provided with widely spacedteeth I30 which are receivedin registering openings M-A'in the usual manner; w 1

and which prevent slippage of'the tracks l3 and, 35. members i4relativeto each other.

The members M .are secured to and support a generally elongated dumpbody. E5 of U-shape cross-section so that, the body it is rockable' to aposition forydumpingits'load out ofthe side of" the body. The rockingof: thebody on' the trackways is limited by chains l3a of: which eachhasone end anchored to itsxadjacent trackway and its other end anchoredto the body l5. Spring units 1512 are interposed in the chains-for" 4,5cushioning the shock when the body rocks to itslimit.

Means are provided forreleasably locking the; body 15 againstrockingmovement and in its up right central position, as shown in Figs. 1, 2and 3 of the drawings, and comprise locking assemblies generallydesignated l6 and IT in Figs. 1, 2 and-3 of the drawings. The assemblyI6 is. mounted on anupright-irame standard Ifiwhich constitutespart ofthe supporting frame worklo.

I0 and as shown most clearly in Figs. 4 and 5 of the drawings, comprisescooperating parts on the frame work and the end of the body 5.

The rear end of the body I5 is provided with a fixed stop IS] in theform of an annular boss, and which has an axially extendingconcentrically positioned annular boss 23 of smaller diameter extendingfrom the face thereof and preferably formed integrally therewith. Theframe standard I3 has one end of a horizontally disposed arm 2I pivotedthereto by a pin 22, the free end of the arm being provided on itsunderside with a semi-circular shaped saddle member 23 which embracesthe larger portion of the fixed stop I9 when in normal position. Avertically disposed screw 24 is threaded through the frame I8 in.

position so that its lower end abuts against a pillow block 25 fixed asby Welding to the upper side of the arm 2i, for tightly forcing thesaddle 23 carried by the arm 2! onto the fixed stop I9 and therebytightly seciu'ing the body 55 on the trackways I3. The upper end of thescrew 24 is provided with a hand wheel 25 by which the screw 24 may bemanually operated.

A pair of horizontally disposed, oppositely extending, levers 26 and 21are pivoted to the standard I8 by pins 29 and 30, respectively. Thelever 21 extends beyond its point of pivotal connection, as shown at 3I, and such extended end is provided with 2. lug 32, extending laterallyfrom one side thereof, in position to engage that side of the fixed stop20 which is opposite to the lever 27. The lever 28 also extends beyondits point of pivotal connection, as shown at 33, and is likewiseprovided with a laterally extending lug 34, positioned so as to engagethat side of the fixed stop 20, opposite to the lever 28. The levers 2?and 28 are positioned one above the other in the same vertical plane andthe extended ends 3i and 33 thereof, respectively, are normallyyieldingly urged into contact with the respectively opposite lever by atension spring 35. The opposite ends of the spring 35 are anchored tostud pins 38 and 31 which are integrally formed on the extended ends ofthe levers 2i and 28, respectively.

The pivoted arm H has welded thereto a laterally and downwardlyextending finger 38, the lower end of which is positioned in slightlyspaced relation directly above the lever 21 so as to be engaged therebywhen the lever 27 is raised to clear the lug 32 from engagement with thefixed stop 20.

. The under side of the pivoted arm 2I is also provided with a dependinglug 39 which is positioned directly above the extended end 33 of thelever 28 and in slightly spaced relation thereto so as to be engaged bythe extended end 33 when the lever 28 is pivoted downwardly to clear thelug 34 from engagement with the fixed stop 20.

The locking assembly generally designated I! in Fig. l of the drawingsis mounted on an upstanding frame standard 40 which constitutes part ofthe supporting frame-work of the vehicle. As shown most clearly in Figs.6 and 7 of the drawings, the front end of the body I5 is also providedwith a fixed stop generally designated 4|. The fixed stop 4| comprises arelatively large fiat disc-shaped head 42 which is adapted to be weldedor otherwise rigidly secured to the inside it surface of the body I5,and an annular trunnion member 43 integrally formed therewith whichprotrudes through an opening suitably formed in the body I 5. Thetrunnion 43 is surrounded by a bushing 44 upon which is journaled aring-like bearing member 45 which is retained on the trun-' nion by aring-shaped cap 46 secured to the end of the trunnion by screws 4?, themarginal edge of the ring 45 overlapping the face of the bearing member45.

A horizontally disposed arm 48 is pivotally mounted at one end thereofon the frame 48 by a pivot pin 49 and the free swinging end thereof isturned downwardly and shaped to provide a semicircular saddle 50 whichis adapted to rest upon and partially surround the bearing ring 45. Avertically disposed screw shank 5I is threaded through the frame-work 40in position so that its lower'end rests upon and bears against a pillowblock 52 which is welded or otherwise suitably secured to the topsurface of the arm 48. The top end of the screw 5I extends above theframework 40 and is provided with a manually operable hand wheel 53 bythe turning of which the arm 48 may be clamped securely and tightlyagainst the fixed stop of the vehicle body.

Means are provided for raising the lever arm 48 about its pivot 49 so asto release the fixed stop on the saddle 5D and comprise a pair ofaxially aligned horizontally disposed shafts 54 and 55 which arejournaled in suitable brackets mounted on the standards '40, and each ofwhich has one end protruding beyond the outer sides of the standard. Theouter protruding ends of the shafts 54 and 55 are provided with manuallyoperable hand levers 5B and 5'1, respectively, keyed.

thereto and which are normally in an upright position with respect totheir respective shafts.

The inner ends of the shafts 54 and 55 are provided with lever arms 58and 59, respectively, which are keyed thereto, and the outer ends ofwhich are provided with rollers for contacting a bearing block 59 whichis welded or otherwise suitably secured to the under side of the arm48.;

The arrangement is such that rotation of either of the shafts 54 or 55will raise the arm 48, when screw Si is backed away to give sufficientand proper clearance, so that the saddle 50 will disengage from thefixed stop of the body I5.

In the operation and use of this vehicle, during the time when thebodies are being loaded and hauled or transported to the dumping ground,the hand-wheels 26 and 53 are rotated so as to screw in their respectivethreaded shanks and tightly clamp their respective arms 2| and 48tightly and securely onto their respective fixed stops and thereby clampthe body I5 securely to the trackways I3.

When it is desired to dump the bodies either to, one side or the other,the hand wheels 26 and 53 are rotated so as to back their respectivethreaded shanks away from the pillow blocks 25 and 52 and havesufficient clearance for removing the saddles from their respectivefixed stops.

The operator then rotates one of the hand levers 55 or 51, whicheverlever is on his side of the vehicle, through a 90 movement. Suchrotation of the hand lever causes the arm on the inner end of its shaftto raise the pivoted arm 48 by contact with the bearing block 53 untilthe saddle 5B is disengaged from the bearing ring 45. The operator thengoes to the other end of the vehicle and either lifts up or pulls downon the horizontally extending lever 2'1 or 28, depending upon which sideof the vehicle he is located. If it is theagainst the depending lug 39will raise the pivoted arm 2! until its saddle 23 is lifted out ofengagement with the fixed stop I9. With the lever in thisposition, it isthen possible to "rock theebo'dy on its trackway in a directionopposite-to that uponwhich-the operator is located. It will thus be-seenthat due to the lug 32 of the lever-2T the body is prevented fromrocking or rolling toward the operator. Shouldthe operator be on theopposite sidefof the vehicle, it is then necessary fo-rhimto raise upon-the lever 2T, at which time the inner end 3| will be moved downwardlyso as to cause the lug 32 to clear the fixed stop 26'. At the same time,the upward movement of the lever 21 will cause it to abut against thedepending lower end of the finger 38 which is rigidly attached to thepivoted lever 2| and in the same manner as hereinbefore described, willlift the lever 2i so that its saddle 23 is disengaged from the fixedstop l9. Thus, when the lever 21 is operated to release the body so thatit may be dumped by rocking movement, the lug 34 on the inner extendedend of thelever 28 will prevent the body from rocking toward theoperator who is located adjacent to the lever 21. It will thus be seenthat the operator cannot possibly unlock the body for dumping movementin such a manner as to permit the body to rock or dump upon or towardshim.

Although but two specific embodiments of this invention have been hereinshown and described, it will be understood that numerous details of theconstruction shown may be altered or omitted without departing from thespirit of this invention as defined by the following claims.

' What is claimed is:

1. In a vehicle, a supporting frame, a dump body rockable on said frame,a fixed stop on said body, quickly releasable means mounted on saidframe for engaging said stop to lock said body against rocking movement,and an adjustable pressure bearing clamp for tightly and rigidlysecuring said body to said frame.

2. In a vehicle, a supporting frame including substantially horizontaltrackways, a dump body rockably mounted on said trackways, a fixed stopon said body, quickly releasable means mounted on said frame forengaging said stop to lock said body against. rocking movement, and anadjustable pressure bearing clamp for tightly and rigidly securing saidbody against said trackways.

3. In a vehicle, a supporting frame, a dump body rockable on said frame,a fixed stop on said body, quickly releasable means mounted on saidframe for engaging said stop to lock said body against rocking movement,and an adjustable pressure bearing clamp bearing on said stop fortightly and rigidly securing said body to said frame.

4. Ina vehicle, a supporting frame, a dump body rockable on said frame,a fixed stopon said body, quickly releasable means mounted on said bodyrockable on said frame, a fixed stop on said body, quickly releasablemeans mounted on said frame for engaging said stop to lock said bodyagainst rocking movement, and a screw clamp bearing on said stop fortightly securing said body to said frame.

6. In a vehicle, a supporting frame including Y "7. In avehicle asupporting frame, a-dump bo'dy rockable on said frame, a ,fixed stop onsaid body, quickly releasable means -mounted on said frame for engagingsaid stop to lock said body against rocking movement, saidfiquicklyreleasable means comprising a pair of handles extending in oppositedirections so as to be accessible at opposite sides, respectively, ofsaid body, a lug on each of said handles positioned to normally engageopposite sides, respectively, of said stop, each of said lugs beinglocated on the side of said stop opposite to its respective handle,yielding means for normally holding said lugs in stop-engaging position,and a screw clamp bearing on said stop for tightly securing said body tosaid'frame.

8. In a vehicle, a supporting frame, a dump body rockable on. saidframe, a fixed stop on said body, quickly releasable means mounted onsaid frame for engaging said stop to lock said body" I against rockingmovement, said quickly releasable means comprising a pair ofsubstantially horizontally disposed handles pivoted on said frame, saidhandles extending in Opposite directions so as to be accessible atopposite sides, respectively, of said body, each of said handlesextending beyond its point of pivotal support, a lug on the extended endof each handle for engaging the side of said stop opposite to itsrespective handle, said handles being pivotally movable to move saidlugs clear of said stop and thereby permit rocking movement of saidbody, yielding means fornormally holding said handles so that theirrespective lugs lock said stop against movement, and a' screw clampbearing on said stop for tightly securing said body to said frame.

9. In a vehicle, a supporting frame, a body rockable on said frame todump the same and two independent means for releasably locking said bodyagainst rocking movement, one of said means being a screw clamp fortightly and rigidly securing said body on said frame.

10. In a vehicle, a supporting frame, a body rockable on. said frame todump the same and two independent means for releasably locking saidbody. against rocking movement, one of said means being quicklyreleasable and the other of said means being a screw clamp for tightlyand rigidly securing said body on said frame.

11. In a vehicle, a supporting frame, a dump body rockable on said frameto dump the same, a fixed stop on said body, an arm pivoted on'saidframe, means on the free end of said arm for engaging said stop tothereby lock said body against rocking movement, and a manually operablehand screw for exerting pressure on said arm to tighten its connectionwith said stop.

12. In a vehicle, a supporting frame, a dump body rockable on said frameto dump the same, a fixed stop on said body, an arm pivoted on saidframe, means on the free end of said arm for engaging said stop tothereby lock said body against rocking movement, quickly releasablemeans on i quickly releasable means for locking said body againstrocking movement, and means acting between both said clamping means andsaid quickly releasable means for disengaging said clamping means whenloosened, when said quickly releasable means is actuated to unlock thebody to permit rocking movement.

14. In a vehicle, a supporting frame, a body rockably mounted on saidframe to dump the same, an arm pivoted on said frame, means on the freeend of said arm to engage said body and releasably lock the same againstrocking movement, a pair of manually operable levers pivoted on saidframe and accessible from opposite sides, respectively, of said body forindependently actuating said arm to release said body and thereby permitrocking movement thereof.

EDWARD R. BARRETT.

